Hoage, R. J.; Deiss, William A. (1996). New Worlds, New Animals. Johns Hopkins University Press. p.148. ISBN 0-8018-5373-7. Inglis, C. M. (1904). "The birds of the Madhubani subdivision of the Darbhanga district, Tirhut, with notes on species noted elsewhere in the district. Part VIII". J. Bombay Nat. Hist. Soc. 16 (1): 70–75. Rasmussen, P. C.; Anderton, J. C. (2005). Birds of South Asia: The Ripley Guide. Vol.2. Smithsonian Institution & Lynx Editions. p.78. Fisher, C. T., ed. (2002). A Passion for Natural History: The Life and Legacy of the 13th Earl of Derby. National Museums and Galleries on Merseyside. ISBN 1-902700-14-7. Distribution: Mainly restricted to the highlands of Scotland during the summer, their winter range includes most coastal areas, lakes, large rivers and other inland water bodies. They are particularly best looked for in north and west Britain.

Ducks | Identification Guides | Bird Spot Guide To British Ducks | Identification Guides | Bird Spot

Johnsgard, Paul A. (1965). "Tribe Aythyini (Pochards)". Handbook of Waterfowl Behavior. Ithaca, New York: Cornell University Press. ISBN 0-8014-0207-7. Distribution: Widespread in England and along the Welsh coast during winter but more restricted to east and north-east England and the Midlands during summer, with some populations in parts of Scotland, Northern Ireland and the south coast of England. Ripley, S. Dillon (1950). "Two birds about which more information is needed". J. Bombay Nat. Hist. Soc. 49 (1): 119–120. Irby, L. H. (1861). "Notes on birds observed in Oudh and Kumaon". Ibis. 3 (2): 217–251. doi: 10.1111/j.1474-919X.1861.tb07456.x. King, F. Wayne (1988). "Extant Unless Proven Extinct: The International Legal Precedent". Conservation Biology. 2 (4): 395–397. doi: 10.1111/j.1523-1739.1988.tb00205.x.Blanford WT (1898). The Fauna of British India, Including Ceylon and Burma. Birds. Volume 4. Taylor and Francis, London. pp.425–426. Livezey, B. C. (1998). "A phylogenetic analysis of modern pochards (Anatidae: Aythini)" (PDF). The Auk. 113 (1): 74–93. doi: 10.2307/4088937. JSTOR 4088937. Distribution: Restricted to scattered areas of Scotland and the east of England in summer in only small numbers. Their significant winter population has an expanded range that includes much of the English coastline and parts of Wales, Northern Ireland and Scotland. Distribution: During the breeding season, they’re most common northwards from the Northumberland coast and off the west coast of Scotland. During the winter, their range expands to include areas along the east and south coasts, parts of the southwest coast and some areas of the Welsh coast.

Pink-headed Duck - Rhodonessa caryophyllacea - Birds of the World Pink-headed Duck - Rhodonessa caryophyllacea - Birds of the World

Distribution: Present in almost all coastal areas in the UK year-round, as well as some inland waters such as reservoirs. Swainson, W. (1838). The cabinet cyclopaedia. Animals in menageries. London: Longman, Orme, Brown, Green & Longmans, and John Taylor. pp.277–278. Distribution: Widespread across England, parts of Scotland and Northern Ireland. Less common in Wales and south-west England but they can be seen here as their range expands during the winter. Distribution: Mainly found in the Midlands, south-east of England, parts of Scotland’s east coast, eastern Northern Ireland and along the south and north coasts of Wales. Their range expands during winter to include Cornwall and North Devon, parts of Scotland’s west coast and larger areas of Northern Ireland. Oates, Eugene W. (1902). Catalogue of the collections of birds' eggs in the British Museum (Natural History). Vol.II. London: British Museum. p.143.Latham, John (1790). Index ornithologicus, sive Systema Ornithologiae; complectens avium divisionem in classes, ordines, genera, species, ipsarumque varietates: adjectis synonymis, locis, descriptionibus, &c. London: Leigh & Sotheby. There is possibly hope that a few individuals survive in the inaccessible areas of swampland in Myanmar. Numbers would most likely be fewer than 50, so it is listed as Critically Endangered. Because of the possibility of survival, the species is still listed by BirdLife International and also the Handbook of Birds of the World. Jerdon, T. C. (1864). The game birds and wild fowl of India. Calcutta: Military Orphan Press. pp.176–177. Ali, S.; Ripley, S. D. (1978). Handbook of the birds of India and Pakistan. Vol.1 (2nded.). Oxford University Press. pp.175–177. ISBN 0-19-562063-1.

BBC Radio 4 - The Untold, Quest for the Pink-Headed Duck BBC Radio 4 - The Untold, Quest for the Pink-Headed Duck

Woolfenden, G. E. (1959). "Postcranial osteology of the waterfowl". Bull. Fla. State Mus. 6 (1): 183–187. Anonymous (1875). Revised list of the vertebrated animals now or lately living in the gardens of the Zoological Society. Zoological Society of London. p.29. van der Ven, Joost (2007). Roze is een kleur– Zoektochten naar een eend in Myanmar 1999–2006. Utrecht: IJzer. Distribution: An introduced species, the main population is in the south, central and eastern areas of England, but there are small numbers in northern England, Wales and Scotland.Hume, A. O.; Marshall, C. H. T. (1881). Game birds of India, Burmah and Ceylon. Vol.3. Self-published. pp.173–180. a b BirdLife International (2018). " Rhodonessa caryophyllacea". IUCN Red List of Threatened Species. 2018: e.T22680344A125558688. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22680344A125558688.en . Retrieved 13 November 2021. |date= / |doi= mismatch Distribution: During the summer, pochards are most likely found along the east coast of England but in the winter they can be seen along almost all of the UK coastline, as well as on large lakes and estuaries inland. Johnsgard, Paul A. (161). "The Taxonomy of the Anatidae: A behavioural analysis". Ibis. 103: 71–85. doi: 10.1111/j.1474-919X.1961.tb02421.x.